Switching-ripple-based current sharing for paralleled power converters

Author(s)
Perreault, David J.; Sato, Kenji; Selders, Robert L., Jr.; Kassakian, John G.
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Abstract
This paper presents the implementation and experimental evaluation of a new current-sharing technique for paralleled power converters. This technique uses information naturally encoded in the switching ripple to achieve current sharing and requires no intercell connections for communicating this information. Practical implementation of the approach is addressed and an experimental evaluation, based on a three-cell prototype system, is also presented. It is shown that accurate and stable load sharing is obtained over a wide load range. Finally, an alternate implementation of this current-sharing technique is described and evaluated.
Date issued
1999-10
URI
http://hdl.handle.net/1721.1/86985
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Laboratory for Electromagnetic and Electronic Systems
Journal
IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Perreault, D.J., K. Sato, R.L. Selders, and J.G. Kassakian. “Switching-Ripple-Based Current Sharing for Paralleled Power Converters.” IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications 46, no. 10 (1999): 1264–1274. © 1999 IEEE
Version: Final published version
ISSN
10577122
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